Four sisters begin attending your school. one has brown hair and brown eyes. another has brown hair and blue eyes. the third also has blue eyes, but blonde hair. the fourth has blonde hair, too, but she has brown eyes. explain how the principle of independent segregation accounts for these sisters having four different phenotypes for two traits

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

Which part of the neuron below is indicated by the arrow, and what is its function? hormones send chemical signals throughout the body to regulate other body processes. hormones are chemical signals that are sent throughout the body to regulate other body processes. hormones send electrical signals throughout the body to regulate other body processes. hormones are electrical signals that are sent throughout the body to regulate other body processes.

If 360 joules of work are needed to move and create a distance of 4 m what is the weight of the crate